@article {4117, title = {Transition metal azolates from metallocenes .1. Dimetallic and trimetallic cyclopentadienyl nickel pyrazolates, synthesis and structural studies}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {75}, number = {7}, year = {1997}, note = {ISI Document Delivery No.: XR886Times Cited: 10Cited Reference Count: 23}, month = {Jul}, pages = {949-958}, type = {Article}, abstract = {{The reactions of nickelocene with pyrazoles in benzene solution have resulted in the isolation of either dimeric compounds, [CpNi(mu-pz{\textquoteright})](2), (room temperature conditions) or trimetallic complexes, [CpNi(mu-pz {\textquoteright}{\textquoteright})(2)](2)Ni, (elevated temperature conditions). Both dimeric and trimetallic species were obtained as red crystalline materials and X-ray structural investigations are reported for representative samples of each type. Structural features are interpreted and compared with similar, previously reported, nickel pyrazolate structures. Crystals of [CpNi(3,5-diMepz)](2) (C20H24N4Ni2), 1, are orthorhombic}, keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, CRYSTAL, crystal structures, CYCLOPENTADIENYL, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURES, NICKEL, nickelocene, POLYMERS, pyrazolates}, isbn = {0008-4042}, url = {://A1997XR88600004}, author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.} }